Process of deodorizing waste gases.



L. HMS.v

PROCESS 0F DEODORIZING WASTE GASES.

APPLICATION FILED AJG.23. I9Io.

1,144,193. Patented June 22,1915.

INVENT() R1 LAMBERT HIL/IIS EY ESIVQMSMMJ Att orn ey.

Vist

UNITED sTATEs PATENT oEEioE. f

LAMBERT runs, or'vIENNA, AUSTRIA-Rimani PROCESS OF DEODORIZING WASTEGASES.

To all whom it may concern: y

Be it known thaty I, LAMBERT HAAs, a subject ofthe Emperor ofAustria-Hungary, and resident of Vienna, Austria-Hungary, have inventeda new and useful Process of Deodorizing Waste Gases, of whichthe-following is a specification.

For deodorizing gases, they are commonly forced through liquids whichare capable of taking up the odorous ingredients. The greater thesurface of contact of the gases with the liquids is, the more completeis the absorption of the gases by the liquids, and consequently the morecomplete is the purifying eect of the latter.

In the art of absorbing it has always been attempted to increase thesurfaces of contact of the gases and liquids to the greatest possibleextent. According to my invention this object is attained by beating theabsorbing liquids into a foam through which the gases are filtered,whereby the surfaces of contact of the gases and liquids are multipliedto a much greater extent than has been attained heretofore either byabsorbing, sprayingwthe absorbing liquids or by stirring the same, or byany of the well known and usual methods. l

By my new process, the odorous ingredients, of the exhaust gases, forexample, of internal combustion engines, and of machilies and apparatusheated by fluid combustibles, are removed. By my new process, theexhaust gases of the engines of motorcars may be deodorized, so that thedisagreeable odor of motor-cars is thereby removed.

My process may be put into execution in manifold ways.

In the accompanying drawings I have shown three embodiments of myapparatus.

Figures 1-3 show respectively longitudinal sections of these threeembodiments.

With reference to Fig. l b is an'absorbing drum which is by means of astuffing-box or the like, connected to the exhaust pipe a of a motor orthe like, and is rotated by the motorin any suitable way, such as by atoothed wheel. The drum is partly filled with a liquid capable ofabsorbing the wastegases of the motor and which foams, for instance,with soap-water. To the inner wall of the drum there is attached anumber of narrow longitudinal ribs g of sheetmetal, or brushes or broomsby means of which, on` the rotating of the drum, the

whipping and sprinkling of the liquid is acspenication of LettersPatent. Patented June 22, 1915,

Application led August 23, 1910. Serial N o. 578,604.

complished, and/a heavy formation of foam p effected.

The gases exhausted by the motor enter the drum b through theexhaust-pipe a and are passed or filtered through the foam and thesprinkled liquid, and leave the rotating drum, in a deodorized state, atthe other end through the pipe c. For a better distribution of the gaseswithin the drum b the inlet opening at a is covered by a hollow cone dhaving its apex cut oli", into which cone there projects the smallercone d', thereby changing the gas-outlet to a narrow annular s it.

For retaining the foam and the washing liquid in the drum b within thelatter, and around the outlet for the gases, there is arranged a 'hollowcone d3 with the apex cut away, and which is covered by a hollow cone eso that the gases are forced through the space between the walls of thecone e and cone d3 before they can escape to the pipe c. Thereby thefoam and the washing liquid are retained within the drum.

Naturally on the passage of the gases, especially of the hot exhaustgases of the motor, the foam is partly destroyed, and thereby theabsorbing surface of the liquid would be reduced, were it not that, inconsequence of the lively movement of the washing liquid, there isalways new foam formed.

In consequence of the saturation of the washing liquid, especially withhydrocarbons, in course of time the formation of foam is retarded. Thewashing liquid is then renewed through the valve g.

With reference to Fig. 2, within the drum'- Z) is arranged a stirrer kagainst which the liquid is thrown, which latter is centrifugated by thehigh rotation of the drum, and so the liquid is still more completelydistributed and converted to foam than with the apparatus shown in Fig.1.

.In the embodiment shown by Fig. 3 the stirrer h rotates within therigid drum J. In this connection, naturally, all known foaming andabsorbing liquids may be used. For example, at'present a solution of 15%of core-soap has shown itself superior to other absorbing means. ,y Y

As compared with the well known processes of deodorizing gases, myprocess has the most eli'ective advantage of using only the most simplearrangements and avery small space'for mounting, but the chiefaddvantage thereof is that no resistance occurs l to the gases on theirfromy the motor` to the atmosphere throug the absorb' liquid, so thatthe motor is not -nuefnoe bythe treatment of the gases.

I claim as my inyention;

1. -A process of deodorlzing waste gases, said process consisting in famixture of foam and soapy Water in a closed space, beating the niiitur'ewhereby the InXtilif is sprayed.;

beating the ihizztne whereby the mixtu e is v I nd forcing( gasesthrough they sprayedllidud 'and foam.,

sprayed; and forcing' gases throughl the sprayed liquid and 0am duringthe beating. A p'c'e'ssof ed'orizing Waste gases, said process;onsisting in forming a mixture of foam and a 15%v solution of core soapand Water ina closed space, beating the mixture whereby the mixture issprayed; and fbeih' 'ga's's through the sprayed liquid and foam.

In witness whereof I have hereunto set my handin the presence of twoWitnesses.

L. HAAS Wifii" 1 y N'Rr ha Semi l ALoREsANDo SwnieDsE.

